Home / 199,143.41-274,816.38-108,499.09

Finding the Fourth Proportional to 199,143.41, 274,816.38 and 108,499.09

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Solution

The fourth proportional to 199,143.41, 274,816.38 and 108,499.09 is: 149,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,143.41 : 274,816.38 = 108,499.09 : x
  2. Step 2: Convert to fraction form
    199,143.41/274,816.38 = 108,499.09/x
  3. Step 3: Cross multiply
    199,143.41x = 274,816.38 × 108,499.09
  4. Step 4: Simplify right side
    199,143.41x = 29,817,326,604.60
  5. Step 5: Solve for x
    x = 29,817,326,604.60/199,143.41
  6. Step 6: Final answer
    x = 149,727.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.